ARLINGTON, VA – The American Waterways Operators, a 350-member trade association representing the U.S. tugboat, towboat and barge industry, hailed the House introduction of critical vessel discharge legislation yesterday, praising the leadership of sponsors Duncan Hunter (R-CA), Coast Guard and Maritime Transportation Subcommittee Chairman, and Rep. Elijah Cummings (D-MD), a senior member of the House Transportation & Infrastructure Committee.